622197 has 12 divisors (see below), whose sum is σ = 905580. Its totient is φ = 411648.

The previous prime is 622189. The next prime is 622241. The reversal of 622197 is 791226.

622197 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 352836 + 269361 = 594^2 + 519^2 .

It is not a de Polignac number, because 622197 - 2³ = 622189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 622197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2179 + ... + 2447.

It is an arithmetic number, because the mean of its divisors is an integer number (75465).

2⁶²²¹⁹⁷ is an apocalyptic number.

It is an amenable number.

622197 is a deficient number, since it is larger than the sum of its proper divisors (283383).

622197 is a wasteful number, since it uses less digits than its factorization.

622197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 529 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 622197 is about 788.7946500833. The cubic root of 622197 is about 85.3707907793.

Subtracting from 622197 its sum of digits (27), we obtain a triangular number (622170 = T₁₁₁₅).

It can be divided in two parts, 62219 and 7, that added together give a palindrome (62226).

The spelling of 622197 in words is "six hundred twenty-two thousand, one hundred ninety-seven".